CaratHunter
Plans
Round|Natural|GIA

1.31ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2191483494

Certificate GIA 2191483494

Diamond specifications and retailer prices

From $3,136 USD
As of November 4, 2026
Save $1,805 USD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,941 USD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2191483494. Listed at 6 retailers as of November 4, 2026, with prices from $3,136 to $4,941, a $1,805 spread on the same certified stone. Cape Diamonds lists it at $4,941. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.31
Carat
M
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2191483494
Dimensions7.01 × 6.95 × 4.35 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.01 mm6.95 mm1.31 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2191483494
Side View
Table 56.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,941 USD|Low: $3,092 USD|High: $4,976 USD|Avg: $4,152 USD|+2.6%
Cape Diamonds
Retailer 2
Retailer 3
November 5, 2026
Retailer 3$3,136 USD
Retailer 2$4,437 USD
Cape Diamonds$4,941 USD

26 data points across 3 retailers

6 retailers$3,136 USD to $4,941 USD

B
Cheapest Retailer
-
$3,136 USD
B
Retailer 2
-
$3,256 USD
View
B
Retailer 3
-
$3,520 USD
View
B
Retailer 4
-
$3,989 USD
View
B
Retailer 5
-
$4,437 USD
View
Most Expensive
B
Cape Diamonds
cert_2191483494 · Nov 5
$4,941 USD
ZAR 79,822 ZAR
View
5 more retailers have this diamond
Prices start from $3,136 USDSave up to $1,805 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.31ct Round
$3,136 USD